TY - JOUR
T1 - Laboratory and field investigation of the effects of biosealant applications to the surface of asphalt pavement
AU - Ghosh, Debaroti
AU - De Oliveira, Jhenyffer Matias
AU - Lima, Mateus Aguiar
AU - Turos, Mugurel
AU - Johnson, Eddie
AU - Marasteanu, Mihai
N1 - Publisher Copyright:
© 2018 American Society of Civil Engineers.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - Pavement preservation plays a significant role in maintaining aging pavement infrastructure under severe budget constraints. An important component in this is the application of sealants to surface asphalt pavements. A recent study investigated the field performance and mechanical properties of asphalt mixtures from pavement sections treated with four sealants, including two new products called biosealants. Field cores from both the control and the treated section were collected, from the tops of which thin beam specimens were cut to perform creep and strength tests at low temperature. The core bottoms were used to prepare laboratory-treated samples using an application process that mimics the spraying of sealant in actual field conditions. These samples were also tested at low temperature. Based on the creep stiffness and strength results, no significant effects were observed for the field-treated mixtures but a number of significant effects were observed for the laboratory-treated mixtures. The results of Fourier transform infrared spectroscopy (FTIR) analysis supported the laboratory findings. As part of field performance testing and monitoring, distress surveys of the shoulder test sections were performed after sealant application, and laboratory findings were also verified using cracking values of the treated and untreated field sections.
AB - Pavement preservation plays a significant role in maintaining aging pavement infrastructure under severe budget constraints. An important component in this is the application of sealants to surface asphalt pavements. A recent study investigated the field performance and mechanical properties of asphalt mixtures from pavement sections treated with four sealants, including two new products called biosealants. Field cores from both the control and the treated section were collected, from the tops of which thin beam specimens were cut to perform creep and strength tests at low temperature. The core bottoms were used to prepare laboratory-treated samples using an application process that mimics the spraying of sealant in actual field conditions. These samples were also tested at low temperature. Based on the creep stiffness and strength results, no significant effects were observed for the field-treated mixtures but a number of significant effects were observed for the laboratory-treated mixtures. The results of Fourier transform infrared spectroscopy (FTIR) analysis supported the laboratory findings. As part of field performance testing and monitoring, distress surveys of the shoulder test sections were performed after sealant application, and laboratory findings were also verified using cracking values of the treated and untreated field sections.
KW - Bending beam rheometer
KW - Biosealant
KW - Fourier transform infrared spectroscopy
KW - Pavement preservation
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U2 - 10.1061/(ASCE)MT.1943-5533.0002157
DO - 10.1061/(ASCE)MT.1943-5533.0002157
M3 - Article
AN - SCOPUS:85048052782
SN - 0899-1561
VL - 30
JO - Journal of Materials in Civil Engineering
JF - Journal of Materials in Civil Engineering
IS - 8
M1 - 04018187
ER -